var isOpen=true;
function closeOrexpend(){
	if(isOpen){
		window.parent.document.getElementById('indexBody').cols="0,10,*";
		image1.src="images/button-you.jpg";
        //mytable.bgColor="#ceefff";
        mytable.background="images/menuBarBG.jpg";
		isOpen=false;
	}else{
		window.parent.document.getElementById('indexBody').cols="200,10,*";
		image1.src="images/button-zuo.jpg";
		mytable.background="images/menuBarBG.jpg";
		isOpen=true;
	}
}